eMachine T5230 Desktop - black screen

Emachines T5230 desktop
July 22, 2010 at 22:34:47
Specs: Windows Vista Home Premium
Have this emachine and it will no longer start up. The power comes on and stays at a high level but nothing else does. Where should I look first ??

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#1
July 22, 2010 at 22:40:24
You probably have a malfunctioning BESTEC power supply
See Response 2
http://www.computing.net/answers/ha...

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#2
July 22, 2010 at 23:03:23
Yes - the symptoms do seem to match what I am reading.

Bestec ATX-300-12E Rev. D1R Replacement Power Supply 300W for Gateway Part Numbers 6506087R, 6506092R, 6506069R
This is a Bestec replacement power supply part number ATX-300-12E Rev. D1R for Gateway Part Numbers 6506087R, 6506092R, 6506086R, 6506088R and 6506069R. Delta Model Number DPS-300AB-15B, HP-P3027F3, WMEDPS-300pb-1A, WMEDPS-300PB-1A, WMEHP-P3027F3.

Connectors:
1 x 20 Pin
1 x 12V 4 Pin
2 x 4 Pin for CD
2 x SATA for HDDs
1 x Floppy
Options & Buy
Bestec ATX-300-12E Rev. D1R Replacement Power Supply 300W for Gateway Part Numbers 6506087R, 6506092R, 6506069R
Model: ATX-300-12ED1R
Price:$31.99


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#3
July 22, 2010 at 23:04:19
Sorry - that post got away from me. I meant to ask if that would be a good replacement power source??

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Related Solutions

#4
July 22, 2010 at 23:13:02
I think I'd avoid any Bestec brand power supply.

It's also possible the motherboard is bad. A bad power supply can ruin the motherboard as well. Of course you won't know that until you try out a known good power supply.

Now that's what I call a sticky situation


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#5
July 22, 2010 at 23:16:56
OK - thanks - I'll see if I can find a power supply laying around somewere and try it first - I was kinda thinking power supply all along - but when it actually starts up - I figured the power was good - even though nothing happens and the power supply just runs at a high level - that's probably the problem......now to find out if the motherboard is ruined as well - thanks again....

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#6
July 22, 2010 at 23:50:11
The power supply has to provide several different voltages at sufficient current in order for the computer to work. The fans, LEDs and drives only need 5 and 12 volts to fire up. So a power supply can still be bad even though all those things are working.

In my limited experience, I'd estimate about half the time a bad power supply will ruin the motherboard as well. So good luck with that.

It's also possible it's only the motherboard that's bad but that's usually not the way it works out.

Now that's what I call a sticky situation


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#7
July 23, 2010 at 00:01:03
We should probably ask first, Did anything happen or did you do anything with the computer between the last time it worked OK and the first time it didn't? If you were inside the case cleaning it out, adding ram or whatever, that is likely the main reason.

Now that's what I call a sticky situation


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#8
July 23, 2010 at 00:16:37
Possibly we jumped to the power supply/motherboard too quick. Tell you what, do this first: Unplug the power cable. Then temporarily disconnect all the drives and remove all the cards except video. The start it up and see if you get a posting screen or emachine logo. If so, then one of the disconnected items is likely at fault.

Now that's what I call a sticky situation


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#9
July 23, 2010 at 07:25:12
No - nothing had been going on prior to this problem. The machine just started turning itself off - there were a couple of blue screens of death (fatal error messages) then one day some lines - now nothing. Still think I should disconnect everything and try starting it up??

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#10
July 23, 2010 at 07:26:58
"...I meant to ask if that would be a good replacement power source??"
"...now to find out if the motherboard is ruined as well.."

See the info pointed to in Response 1.

"....I'll see if I can find a power supply laying around somewere and try it first ,,,,"

Good idea.
If the power supply hasn't failed completely, your chances are good that the system will work with another power supply.


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#11
July 23, 2010 at 12:48:50
Unless the symptoms you describe--BSODs, bad video--are unrelated to it being completely dead now, I wouldn't think it is the power supply. Usually if a power supply goes it's an all-of-a-sudden thing. That is, it's working OK one minute and the next it's dead.

I'd go ahead and disconnect the hardware as I mentioned above and see what happens. If you still get nothing then try a known working power supply. And if you still get nothing then it's probably the motherboard.

Forgot to ask, does it give any beeps when you start it up?

Now that's what I call a sticky situation


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#12
July 23, 2010 at 13:46:05
I've seen many times that BESTEC power supplies often malfunction such that they still partially work before they fail completely.

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#13
July 23, 2010 at 14:01:23
You have all been so helpful - I am going to have access to an extra power supply tomorrow and will hook it up then and see what happens ......

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#14
August 1, 2010 at 10:38:20
OK - I've now located a working power supply and installed it. It does exactly the same thing which is power up on high and stays at that level - black screen - no beeps. It has to be manually turned off. I then disconnected all the drives - the cards are integrated so I cannot disconnect them and powered it up again - still nothing. Am I to assume the motherboard is dead?? Any other suggestions ??

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#15
August 1, 2010 at 13:15:55
Most mboards require you connect both the main 20 or 24 pin connector and a smaller connector from the PS to sockets on the mboard. .
I'm assuming you connected both.

You could try this - if you get no beeps, the mboard is probably definitely dead - it was probably damaged by the BESTEC PS.

Make sure you have a speaker or speakers or the equivalent connected to the mboard so you can hear mboard beeps (see your mboard manual if you need to).
Remove the AC power to the case/power supply.
Remove all the ram.
Restore AC power.
Try to boot.
If nothing else is wrong, you will get no video but you will hear a pattern of beeps that indicate no ram is installed, or a ram problem.
E.g. for an Award bios or a bios based on one, that's often a beep of about a half second, silence for a half second, a beep of about a half second, silence for a half second, continuously.
.....

If you still get no beeps .....

What you do now is up to you.

Your're going to need to risk spending up to $200 to fix the system, if you don't have a used PS and a used suitable mboard already.

Although, if you get a PS with, say, 650watts capacity, you can always use it for a new custom generic system with just about any graphics card installed in a slot on it.
......

If you replace the power supply and the mboard, the chances are quite good that your system will then work fine, but that's not 100% certain. .

I can look up which specific mboard you have (the TriGem company that made the emachines computer probably didn't make the mboard) , and see if there are used ones with an emachines bios version available on the web.
You can use any mboard that is compatible with your cpu and ram, but you probably won't be able to restore the original emachines software installation by using Recovery disks for your specific model unless the model detected by the program is deemed acceptable by the installation program and the mboard has an emachines bios version.

Apparently emachines systems don't come with Recovery disks, but there is a program already on the computer when you get it with which you can make them yourself while Windows and the computer are working fine.
Or, if your model is not more than about 5 years old, they can probably be ordered from the emachines web site. If can get them, the cost is probably much less than for a Vista DVD alone.
.......

If you get another desktop emachines system, there's nothing especially inferior about them except for the PS - if the PS is BESTEC, I recommend you take it out and install a better PS.


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#16
August 1, 2010 at 14:01:27
Thank you for your suggestions - I did remove the ram and plugged it back in - it immediately powers up without me pushing the button. There were no beeps to indicate the ram had been removed - there was nothing..... I'm not entirely sure it is worth the effort of replacing the motherboard - guess I'll be out looking around for something else :( Thank you very much for all your help....

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#17
August 1, 2010 at 14:27:46
You're welcome to use our help.

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#18
September 19, 2010 at 14:51:31
Now then!

I have the self same problem with an EL1200. I overwrote the disc to install Linux MINT. Worked very well until I walked away. PC went to sleep and has never woken up. All fans blasting but no video. I tried removing memory sticks and got a very loud Beep-Bahp-Beep-Bahp from the MB, which suggests it is alive. Anyone any idea how to wake the little begger up?

Simon


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#19
September 19, 2010 at 15:30:14
Pull the power plug and temporarily disconnect all the drives and remove all add-on cards except video. Then power it up. Do you get a posting screen? If so the problem is likely with one of the disconnected devices. If not, it's probably some non-specific problem with the motherboard. But you should probably start a new thread so more people will see it and possibly give you other ideas.

Real men don't use AntiVirus; they just reformat


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